Q. For which values of x is the expression undefined?x2−253x−12
Define Undefined Rational Expression: Determine when a rational expression is undefined.A rational expression is undefined when its denominator is equal to 0, since division by 0 is not allowed in mathematics.
Identify Denominator: Identify the denominator of the given expression.The denominator of the given expression is x2−25.
Set Denominator to Zero: Set the denominator equal to zero to find the values of x that make the expression undefined.x2−25=0
Solve Denominator Equation: Solve the equation from Step 3.x2−25=0 can be factored into (x−5)(x+5)=0.
Find Values of x: Find the values of x that make each factor equal to zero.Setting each factor equal to zero gives us two equations:x−5=0 and x+5=0.
Solve Equations for x: Solve each equation for x.Solving x−5=0 gives x=5.Solving x+5=0 gives x=−5.
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